software/erp5: simple SlapOS upgrade test

Confirms SlapOS ERP5 software release can be updated from
a reference version to current version
7 jobs for <span class="ref-name">feat/erp5-no-httpd2</span> in 0 seconds
Status Job ID Name Coverage
  External
failed ERP5.UnitTest-JEROME.own-distributor

06:21:09

running ERP5.UnitTest-Master-no-httpd

1157:36:33

failed ERP5.UnitTest-Master-no-httpd

02:06:56

passed SlapOS.SoftwareReleases.IntegrationTest-Jerome-WIP

09:45:42

failed ERP5.UnitTest-Master-no-httpd

05:28:33

failed ERP5.UnitTest-Master-no-httpd

07:47:42

failed ERP5.UnitTest-Master-no-httpd

04:47:21